Improvement in clod-crushers



J. G.. ERNST.

Rotary-Harrow.

- No. 39,389. Patented Aug. 4, 1863.

mfiwww: 'fiwaiziak UNITED STATES PATENT OFFICE.

JOHN G. ERNST, OF YORK, PENNSYLVANIA.

IMPROVEMENT IN CLOD-CRUSHERS.

Specification forming part of Letters Patent No. 39,389, dated August4,1863.

To all whom "it may concern:

Be it known that I,JOHN G. ERNsT,of York, county of York, and State ofPennsylvania, have invented a new and Improved Glod-Outter andPulverizer; and I do hereby declare that the following is a clear, full,and exact description of the same, reference being had to the aunexeddrawings, making a part of this specification, in which Figure I is aplan; Fig. II, a side view, and Figs. III and IV side views of teeth.

Similar letters of reference indicate corresponding parts.

The object of'this invention is to provide an instrument to pulverizeand cultivate the earth.

To enable those skilled in the art to make and use my invention, I willproceed to describe its construction in reference to the dra W- lugs.

A A is the frame-work of an ordinary garden-rake, with teeth orpinsfffff attached to it.

To the cross bar or head of the rake A the teeth B B B B are attached bymeans of bolts, suitable flanges having been cast on them to provide aseat for the bolts or screw. The teeth B B have each a hole drilled intothem ,to admit shaft 1), and teeth B B, which have with shaft b.

On shaft 1) and outside and between the teeth B B and B B aredistributed the wheels or cutters E E E E E. Said wheels or cutters haveproper holes drilled through their center in such manner as to admitshaft 1) and turn freely around it. WVheels or cutters E E E E are heldin their proper places by means of washersl i l l 1. They may also beheld in place by means of bolts, keys,or set-screws,and thereby firmlysecured to the shaft. In this case the holes through the teeth will formthe bearings for the shaft, while the wheels or cutters will revolvetogether and in a body, being fast to the shaft.

Shaft O, which has its hearings in the teeth B B, is mounted by anadditional series of wheels or cutters, d d d cl d d, which are held intheir proper places by the washers 2 2 2 2 2 and revolves around shaft 0freely.

This implement is adapted to perform both field and garden work, as adifference in the size only is required to fit it for either. It is,moreover, a very cheap and at the same time compact device, and'performs its work in a superior manner.

Having thus fully described my invention, what I claim as new,.anddesire to secure by Letters Patent, is-

The combination and arrangement of the stationary teeth B B and B B,secured to framework A A, shafts b and 0, wheels and cutters E E E E,and wheels or cutters d d d d 01, when constructed and operating as andfor the purpose described.

1 JOHN Gr. ERNST. Witnesses:

ALEX. J. FEAY, GEORGE M. SHETTEE.

